Corresponding Author

National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Japan

Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan

Multimodal Imaging Group, Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada

Correspondence: Fumihiko Ueno, M.D. National Hospital Organization Kurihama Medical and Addiction Center 5-3-1, Nobi, Yokosuka, Kanagawa, 239-0841, Japan. Email: thebun2315@gmail.com Phone: +81.46.848.1550; Fax: +81.46.849.7743 Multimodal Imaging Group, Research Imaging Centre, Centre for Addiction and Mental Health 250 College Street, Toronto, ON M5T 1R8, Canada Email: fumihiko.ueno@camh.ca Phone: +1.416.535.8501 (x 30623)